Comtech EF Data CDM-760 - Page 142

Front Panel Operation Revision 4
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
6–53
Type Alarm
State
Unit
(cont.)
PIIC1 ExtClk Out of
Range
A PIIC interface has been selected and the clock is set to lock to an
External Clock (as with G.703 or other Synchronous PIIC cards), however
the clock signal does not match the expected clock rate.
PIIC2 ExtClk Act
A PIIC interface has been selected and the clock is set to lock to an
External Clock (as with G.703 or other Synchronous PIIC cards), however
no clock signal is detected.
PIIC2 ExtClk Out of
Range
A PIIC interface has been selected and the clock is set to lock to an
External Clock (as with G.703 or other Synchronous PIIC cards), however
the clock signal does not match the expected clock rate.
Log File Fault
The file that is used to save all logging data regarding modem parameters
is missing or corrupt.
Int 250 PLL The modem's internal 250MHz clock is out of range or has failed.
Int 900 PLL The modem's internal 900MHz clock is out of range or has failed.
MEO Mdm: Mdm
Comms
The modem has been set to run in MEO mode and the communication
between the remote Tx/Rx modem and remote Rx demod is timing out or is
getting corrupt / unexpected.
MEO Over Air comms
The modem has been set to run in MEO mode and the communication
between the remote Tx/Rx modem and hub / gateway Tx/Rx modem is
timing out or is getting a corrupt / unexpected response.
MEO ACU Comms
The modem has been set to run in MEO mode and the communication
between the remote Tx/Rx modem and the ACU is timing out or is getting a
corrupt / unexpected response.
Ethernet Link Down
One or more of the Modem's Gig-E Ethernet ports (J5, J6, J7) is enabled
but the modem does not detect any connection to another device (switch /
router / PC etc.).
Tx
(Transmit)
Internal DAC Clk PLL
The modem's internal DAC clock out of range or has failed
Internal Tx LO PLL The modem's internal Tx clock out of range or has failed
PIIC1 Sym Clk PLL
A PIIC interface has been selected but the symbol clock rate that is being
derived from the data does not match the modem SR programmed.
PIIC2 Sym Clk PLL
A PIIC interface has been selected but the symbol clock rate that is being
derived from the data does not match the modem SR programmed.
PIIC1 Input Signal Low
An OC-3 data interface was selected but the optical SFP module has
determined that the optical signal level is low.
PIIC2 Input Signal Low
An OC-3 data interface was selected but the optical SFP module has
determined that the optical signal level is low.
Rx
(Receive)
Demod Unlocked Demod is not locked to a signal.
Rx Level
Receive Power Level has tripped AGC alarm point.
CnC Unlocked Carrier-in-Carrier is enabled but not locked.
Internal ADC Clk PLL
The modem's internal ADC clock out of range or has failed
EsNo Threshold
Receive EsNo is below configured alarm point.
Internal Rx LO PLL Receive Phase Lock Loop fault.
PIIC1 Buffer Overflow
A PIIC interface has been selected but the data rate coming into the PIIC
card exceeds the expected data rate of the user configured PIIC data rate.
PIIC1 Buffer Underflow
A PIIC interface has been selected but the data rate coming into the PIIC
card is less than the expected data rate of the user configured PIIC data
rate.